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rjstewart3's profile

New Member

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4 Messages

Friday, October 7th, 2022 2:35 PM

AT&T Nokia cell booster reboots randomly

Hello,

We have a Nokia cell booster that randomly reboots.  My wife works at home, and she depends on the cell booster to work.  We live in a rural area, hence using it.  Here is how it is set up:

Router: Netgear Nighthawk XR-1000

ISP: Spectrum, 400 Mbps

The cell booster is set up with a static IP and is set up in the DMZ (it was the only way to make it work).

The cell booster is 10 feet from the router, hooked up via CAT 6.

I have checked the router for uptime and show no hiccups.  I reboot the router weekly.  I monitor the network usage, and it never goes above 20 Mbps on download, and upload never goes above 5.

The cell booster only reboots when my wife is on a phone call with work.  All other times, it has no issues.

Thank you for any assistance.

ACE - Expert

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23.7K Messages

1 year ago

Did you try port forwarding (not placing it in the DMZ) to the static IP address based on its MAC address? That seems to be more stable than just using the DMZ when your internet service is variable.

Spectrum (Charter) has a long history of issues with AT&T's femtocells (the original MicroCell and now the Cell Booster). They have always had issues with the required ports for AT&T's femtocells and blame AT&T for that (even tho it's Spectrum's backbone). 

If you have 400Mbps speed and are only getting 20Mbps down a 5Mbps up maximum that's a huge difference and indicates connection issues. Do you have to reboot every week to keep your connection stable or does it just happen on its own?

The Cell Booster rebooting while on a call is a loss of connectivity to the AT&T Mobility Servers. That could either an issue on AT&T's end or more than likely instability in the connection thru Spectrum.

Are your phones set to LTE? What kind of phones do you have?

Is the GPS antenna firmly connected and close to or on a window.

Can you do WiFi-C (WiFi Calling) because that is really the preferred method of improving poor in-home coverage.

See my Cell Booster Tech Guide, link is in my sig line for all that you need to know about the Cell Booster.

 

New Member

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4 Messages

1 year ago

1. Did you try port forwarding (not placing it in the DMZ) to the static IP address based on its MAC address? That seems to be more stable than just using the DMZ when your internet service is variable.

No, just the DMZ, I will look into the port forwarding tonight when my wife is not working.

2. If you have 400Mbps speed and are only getting 20Mbps down a 5Mbps up maximum that's a huge difference and indicates connection issues. Do you have to reboot every week to keep your connection stable or does it just happen on its own?

I have 400Mbps but am only using 20Mbps down and 5Mbps up at peak load (my gaming, her working, my son gaming), so I have more than enough speed (Speedtest usually clocks me in at around 480Mbps).  I reboot my router every week just because it is something I have always done.  The Nokia cell booster, however, started rebooting on its own recently, once my wife started working from home.  She is an AT&T employee and uses a COU to handle her calls.  The phone she uses is an iPhone SE 2020 model, LTE.  She can't set it up to do WiFi calling (all our personal phones we can and do).

3. Is the GPS antenna firmly connected and close to or on a window.

Yes

Community Support

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229.6K Messages

1 year ago

Hi there @rjstewart3, we understand the importance of having a stable cell booster, and we'll be happy to help you with this.

 

We'd like to thank @OttoPylot for the great questions and recommendations they made regarding Cell Booster information and troubleshooting. We understand you've been rebooting your router weekly, however we recommend you also go through our Cell Booster support page for additional troubleshooting options to stop your device from randomly resetting. 

 

Please share the results of your troubleshooting, along with the port forwarding option our ACE mentioned, with us here.

 

Dylan, AT&T Community Specialist

 

ACE - Expert

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23.7K Messages

1 year ago

@rjstewart3  The iPhone SE is capable of WiFi Calling. Any iPhone from the iPhone 6 is capable. I would look into that especially if your other phones can use WiFi-C.

Rebooting your router on a weekly basis is not healthy for a stable Cell Booster connection. Every time you reboot, the Cell Booster goes thru the Initial Activation procedure (as detailed in my Guide), part of which is determining local tower strength (for location, handing off, Cell Booster output strength) etc. It can't damage anything but you may see signal output etc differences. 

I'm not familiar with a COU.

ATTHelp is script driven and won't offer much real help.

New Member

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4 Messages

1 year ago

The iPhone SE is WiFi calling capable, the company just won't let her set it up to use the WiFi calling. The company has the phone settings locked, so it has to go through the cell booster.  Without the booster, we only get one bar of service, and even then that is spotty.  When the booster reboots, the call drops as it doesn't swap over to the nearest tower to us.

COU just means Company Owned Unit.

ACE - Expert

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23.7K Messages

1 year ago

Thanks for the COU definition. So, she works for AT&T but they won't allow WiFi-C on their "business" phones? Interesting.

Ok, try this. Place the SE close to the Cell Booster. The same room is usually sufficient. Make sure the phone is set to LTE. If you don't have that option, then the phone will automatically use LTE. Turn the phone completely off (not just Standby), wait a few seconds, and then turn it back on. It could be that your phone needs to register the Cell Booster as part of its cellular neighborhood. Your phone should indicate LTE and you should see the 4G/LTE light flash once the phone connects to it. That connects the phone to the Cell Booster. Now, if the Cell Booster keeps power cycling and re-booting, that means it has lost its connectivity to AT&T and the cause is either on the AT&T side or your internet connection thru Spectrum.

You might also want to try a Reset of the Cell Booster. The instructions are in my Tech Guide. However, I would not routinely reboot your router every week. If you need to do that for reliability, then that's a problem with Spectrum.

New Member

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4 Messages

1 year ago

OK, I have followed your guide on setting the UDP ports, pass-through, and other router configurations.

What I am seeing (sitting here watching the cell booster after doing the above changes on my router) is that all the lights will suddenly go from white to orange, then the Power and GPS light will start blinking white.  The GPS light will then go solid white, with the Power light still blinking.  When the Power light goes solid white, the other three lights pop up white (Internet and Status), while the 4GLTE light will either be solid white, or blinking white (which I read in your writeup as being either in standby mode or in-use).  

I have rebooted the booster and will see how it handles tomorrow.

ACE - Expert

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23.7K Messages

1 year ago

The flashing power light just means it is powering up and communicating with the other functions. The flashing GPS light means it is checking your location and checking for the nearest tower for handing off, maintenance, etc. Once all the lights turn a solid white, you are good to go. The flashing white 4G/LTE means that someone is accessing the Cell Booster (it's probably your phone). The phone app will give display the status of the Cell Booster so you should check that as well.

2 Messages

3 months ago

AT&T Nokia cell booster is experiencing random reboots, there are several potential reasons for this issue. Always refer to the user manual or documentation provided by AT&T and Nokia for specific instructions related to your cell booster model. If the problem persists after trying these steps, it may indicate a hardware issue, and you may need to contact customer support for further assistance or consider a replacement if the device is still under warranty.

ACE - Expert

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23.7K Messages

3 months ago

@habace8653  Your response sounds a little too ChatGPT to me. The best solution is to either consult my Cell Booster Tech Guide, the link is in my sig line, or post a specific problem here and we'll see if we can figure it out. The User Manual is useless. Besides, you've responded to a year old post.

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